question

My Cerbo GX is connected to a Verizon MiFi. On average it uses 110MB per day or 3.3GB per month doing 15-minute updates.

I activated a SIM for mine a week ago, and thus far (according to the phone company’s accounting system) the LTE router connected to my Cerbo has only used 46MB. That said, I don’t yet have a complete system going (it’s just monitoring my future starter battery sitting on a charger) but I have been playing with it, remoting into it and into Node Red via VRM, so it’s somewhat realistic.

Data usage will depend on the install size, vrm update frequency and how often you are monitoring in realtime. For a single inverter, it downloads 3MB and uploads 30MB, per day.

Software updates add to this, which on the Venus seems to be around 100MB each.

I will try the disconnect approach and watch what's written. I get the coach back from Mexico where its in the shop for the next 5 weeks while it gets a new paint scheme. I will also turn off realtime now. It is on an racking up the expensive data while in Mexico, and after that I will find some details one exactly what that's doing for me. I bet others would love to be able to see that data upload information in VRM so they can tune the money they are spending with the cellular carriers to get this information. If its costing them an extra $50 a month for data when they could be spending $10 most customers would probably like to know. And with the advent of LTE-M (cat-m) it might be nice to be able to tune the updates to only pay $30 a year for their data plan... :) -Bill

My boat is closed down for the winter at the moment without any LTE use other than for VRM. For the past 2 months it is 430MB per month so approx. 15MB per day. I download at 1 minute intervals and have Cerbo GX, Multiplus, BMV 712, MPPT, GX Tank 140 with 3 tanks, USB GPS, 4 temperature sensors and 2 bilge level switches. This is about half of the number in the manual.

Wow, once an hour would by about 1/60th of that which would be a really low number, Victron really needs to log how much data is being sent so we can make intelligent decisions on what amount of data we should pay. And be able to see the different data amounts uploaded depending on how often you send data. Each user would have their own baseline of data uploaded per transaction based on whats connected, then how often its pushed tells you how much data to buy. .

My sixfab account records on average about 8mb download and 3mb upload per day. I have all Victron multi-plus, mppt, DC-DC, shunt, Lynx, and two Ruuvi temp. Seems a bit chubby for what data I have. Real time updates are off.

I also adjusted to 30min updates from 15min. Thought I'd see the upload data half, but haven't - rebooted and start/stoped the VRM uploads. No joy.

What I also don't get is why the download is 8mb? The 8mb is very consistent daily over the entire month. Doesn't look like software updates.

Victron should shed some light on the sync mechanics - in the IOT world this is a lot of data costing larger fleets decent money.

Yeah, that's really a lot of data for some telemetry... And Why so much download? What is the system downloading all the Time for Pure Monitoring purposes. I'm just considering building a 4-5G backed Wi-Fi Router in the RV and use it for VRM Monitoring. But this seems far too expensive for a minimal monitoring Job.

Does anyone know where the data volume is going to? Especially for the downloads, if I see an 8:3 MB Down/Up Ration in the post above....

I suggest you also look at this thread: https://community.victronenergy.com/questions/262625/download-data-size-is-3x-upload-why-is-this-so-muc.html?childToView=262979#answer-262979